Improvement in wire-cutting machines



J ADT Wire-Cutting Machines. 5,027.

-l!\{o. 20 Patented June 18, 1878. "5;" f

NTTEE STlLiTEs PATEiQrglCE.

JOHN ADT, OE NEw HAVEN, CONNECTICUT.

IMPROVEMENT IN WIRE-CUTTING MACHINES.

Specification forming part of Letters Patent No. 205,027, dated June 18, 1878; application led April 30, 1878.

To all whom it may concern:

, Be it known that I, JOHN ADT, of New:

Figure 1, top view; Fig. 2, front view; Fig. 3, longitudinal central section; Fig. 4, section through the arbor 5 Fig. 5, rear end view.

This invention relates to a machine for cutting wires into lengths, such as required for many branches of manufacture, and also for the article known to the trade as wire rods,77

' and which require that thepieces cut shall be of a given length and straight. o

The object of this invention is the construetion of an automatic machine to feed the wire, cut it to the proper length, and deliver it from the machine; and it consistsin the details of construction and combination of parts, as hereinafter described, and morefparticularly'recited in the claims.

The feeding device which delivers the wire consists in a pair of constantly-runnin g rolls, a, between which the wire passes. These rolls are geared together and driven by power to produce such constant revolution. They are provided with a pressure device, here represented as a weight, A, on a lever, B, so that the pressure may be adjusted in substantially the usual manner of similar devices.

It will 4be understood that in connection with this feeding device there is a usual straightening apparatus, so that as the wire is drawn in with the rolls it will at the same time be straightened.

C is an arbor, arranged in bearings D I), so as to be rotated as may be required, and 1ongitudinally on the periphery of this arbor a groove, b, is formed, and the feeding apparatus is arranged relatively to this groove, so that when the groove is in a certain predetermined position it will be in line with the rolls, `and so that the wire fed in will pass directly into and follow the said groove. In this case it occurs when the groove is at the top of the arbor, and as seen in Fig.l3.

On the opposite end of the arbor a pulley, E, is arranged loosely thereon, and so as to revolve freely and constantly when power is applied thereto; and so soon as the requisite length of wire is fed into the groove, the pulley is coupled to the arbor, so as to cause the arbor to rotate therewith.

The wire, after it leaves the feed-rolls, passes through an aperture of a die, d, of substantially the diameter of the wire, and the end-of the arbor runs in so close proximity thereto that, being tted with a cutting-edge at that end, cuts off the wire so soon as the arbor is turned to carry the groove by and away from the die d, which leaves the wire cut free in the groove; and so soon as the arbor is rotated so far as to bring the groove below, the length of wire thus cut will fall from the groove, the arbor continuing until it is again brought into line with the feed. Then the power is disconnected, leaving the arbor in the position to receive another run of the wire. As soon as the arbor cuts off the wire the end of the incoming wire strikes the solid end of the arbor and stops the run of the wire; but the feedrolls continue to revolve, running on the surface of the then stationary wire. y

To make the coupling and uncoupling of the power automatic, a slide, e, is arranged in the line of the groove, and which the incoming wire will strike. On the upper surface of this slide there is an incline, f, and in the head F there is a vertical slide, h. Above this vertical slide h there is a horizontal sliding bar, l, arranged in a head, G, which is stationary upon and revolves with the arbor. In the bar l there is a vertical spring-spindle, n.

On the upper surface of the head F, which it will be understood is stationary, there is an inclined ledge or cam, m, and on the face of the said head there is a similar incline, r'. When the arbor is in the position to receive the wire the slide e is forward, and the spindle n stands directly over the vertical slide h, as seen in Fig. 3. The incoming wire strikes` the vslide c, forcing it toward the pulley. The incline f raises the vertical slide h, and that forces upward the spindle n and releases the sliding bar Zfrom the control of the cam m. Then the bar Z, by the power of the spring thereon, is forced toward the pulley, and so that the projection on the pulley will engage with it, and through that engagement cause the before-described revolution of the arbor. As the parts approach a full revolution the vertical spindle n strikes the cam m, causing the bar Z to be drawn from its connection with the pulley, escaping that connection just when the arbor has arrived at the position from which it started. At the same time the slide e is drawn out by passing its cam r. Then the parts are ready for a second run and cut of the wire, and so continuing, the incoming wire connect'- in g the power and the completion of the revolution of the arbor disconnecting the power.

To prevent the wire from springing outward from the groove While operating the slide e, a plate or cover, H, is arranged over the arbor, so as to fully inclose the groove and support the wire upon the open side of the groove: This cover is stationary, and the groove passes from beneath it very soon after the arbor starts. l y

In order to insure the arbor stopping at theJ reqiired point, and to prevent the power from 'carrying it beyond that point, a cam, L, is arranged on the end of the arbor; and on the post or frame of the machine there is a Vertical spring-slide, P, bearing againstthe said eaimand in the cam there is a notch, c, into which the slide P will fall when the arbor is in its position to receive the wire.l The in- 'cline of the sides of the notch on the cam L 'are so that, when the arbor revolves, it will force the slide away from the cam, but will pro'dice sufficient resistance to arrest the further movement of the arbor after the power is detached. One side 'of the notch is longer than the other, as seen in Fig. 5, and which comes over the vertical slide at the time the poweris disconnected.` Then the vertical slide; 'strikin g this longer side, will, by the force of the spring, turn the arbor until the slide is seated in its notch in the cam, so that7 should the power be disconnected a little before the arbor has come to its stationary position, the slide will force it to that position.

I claim- 1. The combination of the longitudinallygrooved arbor, having an intermittent rotary movement, a stationary cuttingy die, through which the wire passes to the said groove, a feed to introduce the wire to the said groove, and a mechanism, substantially such as described, to connect and disconnect the power from the arbor to produce the said intermittent movement of the arbor, the said arbor in such movement acting in connection with said stationary die to cut oi the wire, and then to deliver the cut piece from the machine, substantially as described. y

2. The combination of the longitudinallygrooved arbor, having an intermittent rotary movement, a stationary cutting-die, through which the wire passes to theysaid groove, a feed to introduce the wire to the said groove, and a mechanism, substantially such as described, to connect and disconnect the power from the arbor to produce the said intermittent movement of the arbor, with a stationary cover over the groove in the said arbor dnring the feed, and from which the arbor will pass in its rotation, substantially as described.

3. The sommation of the itngimuinanygrooved arbor, having an intermittent rotary movement, a stationary cutting-die, through which the wire passes to thesaid groove, a feed to introduce the wire to the said groove, and a mechanism, substantially sach as described, to connect and disconnect the power from the arbor to' produce the said intermittent movement of the arbor, with the cam L and slide P, substantially as and for the pnrpose described.

JOHN ADT.

Witnesses:

JAoHN E. EARLE, H. A. KrrsoN. 

